Metadata-Version: 2.4
Name: notebookutils-py
Version: 0.1.0
Summary: Platform-agnostic notebookutils.fs: Fabric/Synapse-compatible file system utilities and POSIX cloud-storage mounting for any local, VM, or Spark/K8s environment.
Project-URL: Homepage, https://github.com/ligonliu/notebookutils
Project-URL: Documentation, https://github.com/ligonliu/notebookutils#readme
Project-URL: Source, https://github.com/ligonliu/notebookutils
Project-URL: Issues, https://github.com/ligonliu/notebookutils/issues
Author: Ligon Liu
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License-File: LICENSE
Keywords: adls,dbutils,fabric,fsspec,fuse,gcs,mount,mssparkutils,notebookutils,s3,spark,synapse
Classifier: Development Status :: 4 - Beta
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: MIT License
Classifier: Operating System :: POSIX :: Linux
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3.12
Classifier: Programming Language :: Python :: 3.13
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Classifier: Topic :: System :: Filesystems
Requires-Python: >=3.9
Requires-Dist: fsspec>=2023.1.0
Provides-Extra: all
Requires-Dist: adlfs>=2023.1.0; extra == 'all'
Requires-Dist: azure-identity>=1.12.0; extra == 'all'
Requires-Dist: gcsfs>=2023.1.0; extra == 'all'
Requires-Dist: s3fs>=2023.1.0; extra == 'all'
Provides-Extra: azure
Requires-Dist: adlfs>=2023.1.0; extra == 'azure'
Requires-Dist: azure-identity>=1.12.0; extra == 'azure'
Provides-Extra: dev
Requires-Dist: build>=1.0; extra == 'dev'
Requires-Dist: moto[server]>=5.0; extra == 'dev'
Requires-Dist: pytest-timeout>=2.1; extra == 'dev'
Requires-Dist: pytest>=7.0; extra == 'dev'
Requires-Dist: s3fs>=2023.1.0; extra == 'dev'
Requires-Dist: twine>=4.0; extra == 'dev'
Provides-Extra: gcs
Requires-Dist: gcsfs>=2023.1.0; extra == 'gcs'
Provides-Extra: s3
Requires-Dist: s3fs>=2023.1.0; extra == 's3'
Description-Content-Type: text/markdown

# notebookutils.fs: file system and mounting library

generic notebookutils.fs library on arbitrary local/VM/K8s environment, for developing and running pySpark notebooks without Databricks / Azure Synapse / Microsoft Fabric environments.

## Introduction to **`dbutils`** and **`mssparkutils`** 
In cloud Platform-as-a-Service (PaaS) environments, **`dbutils`** and **`mssparkutils`** are essential, built-in utility packages designed to bridge the gap between PySpark code and the underlying cloud infrastructure.

While Apache Spark natively excels at distributed data processing, it lacks built-in mechanisms for environment-specific orchestration. These vendor-specific libraries step in to provide that critical operational control layer.

* **`dbutils` (Databricks Utilities):** The native toolset for the Databricks platform. It allows engineers to interactively navigate the Databricks File System (DBFS), securely retrieve credentials via Azure Key Vault or AWS Secrets Manager, parameterize notebooks using widgets, and chain multiple notebooks into modular workflows.
* **`mssparkutils` / `notebookutils` in Fabric (Microsoft Spark Utilities):** The direct counterpart built for Microsoft Azure Synapse Analytics and Microsoft Fabric. It offers near-identical functionality and APIs tailored for the Microsoft ecosystem, enabling developers to manage files in Azure Data Lake Storage (ADLS) Gen2, handle Microsoft Entra ID tokens, and control notebook pipeline execution paths.

Ultimately, both `mssparkutils` and `dbutils` abstract away complex cloud APIs, allowing data engineers to write secure, scalable, and maintainable data pipelines without leaving their interactive pySpark notebook environments.

## Technical overview of notebookutils.fs
Cloud file operations(put, get, rm) use fsspec backend. While the original dbutils use hadoop backend via Py4J, this library choose fsspec for compatibility with non-Spark environments, such as pure python, DuckDB and StarRocks. 

POSIX mounts use 
- blobfuse v2 for Azure Blob Storage and ADLFS G2
- s3-mount for Amazon S3 and s3-compatible object storage(OVH/Hertzner/DigitalOcean/Linode etc)
- gcsfuse for Google Cloud Storage

## Installation

Install `notebookutils`

```sh
pip install notebookutils
```

Cloud storage backends are optional extras — install only what you need:

```sh
pip install notebookutils[s3]     # Amazon S3 / S3-compatible (s3fs)
pip install notebookutils[azure]  # ADLS Gen2 / Blob (adlfs + azure-identity)
pip install notebookutils[gcs]    # Google Cloud Storage (gcsfs)
pip install notebookutils[all]    # everything
```

For POSIX mounting, install the FUSE binary for your storage type: [mount-s3](https://github.com/awslabs/mountpoint-s3), [blobfuse2](https://github.com/Azure/azure-storage-fuse), or [gcsfuse](https://github.com/GoogleCloudPlatform/gcsfuse).

## Usage

```python
from notebookutils import fs

# Memory-space file operations (fsspec-backed)
fs.ls("s3://my-bucket/data")                    # -> [FileInfo(...), ...]
fs.put("s3://my-bucket/hello.txt", "hi", overwrite=True)
fs.head("s3://my-bucket/hello.txt")
fs.cp("s3://my-bucket/data", "abfss://cont@acct.dfs.core.windows.net/data", recurse=True)  # cross-cloud
fs.mkdirs("gs://my-bucket/new_dir")
fs.exists("s3://my-bucket/hello.txt")
fs.rm("s3://my-bucket/hello.txt")

# POSIX mounting (FUSE-backed, process-safe)
fs.mount("s3://my-bucket", "/mydata")
path = fs.getMountPath("/mydata")
with open(f"{path}/hello.txt") as f:
    print(f.read())
fs.mounts()          # list active mount points
fs.unmount("/mydata")

fs.help()            # full API overview
```

Legacy Synapse code works too: `import notebookutils` installs an in-session `mssparkutils` alias, or simply `import notebookutils as mssparkutils`.

Full API documentation: see [MANUAL.md](MANUAL.md).

### Explicit configuration (optional)

If environment discovery isn't enough (e.g. S3-compatible endpoints), override per protocol:

```python
fs.configure("s3", key="...", secret="...",
             client_kwargs={"endpoint_url": "https://minio.example:9000"},
             mount_options={"allow_other": False})
```

### Configuration Files

notebookutils use the same environmental credentials as major cloud vendor SDKs for authenticating to cloud storage. This includes:
- DefaultAzureCredential Chain
- AWS Boto3 Default Credential Provider Chain
- GCP Application Default Credentials Chain
- ~/.aws/credentials for generic S3-compatible storage

The expectation is if you can access storage with cloud vendor python SDKs, notebookutils.fs is able to access and mount storage.

## Development

```sh
pip install -e '.[dev]'
pytest tests/unit          # unit tests (no credentials needed)
python -m build            # build sdist + wheel
```

### Integration tests (opt-in)

Integration tests use the same credential chains as the official SDKs and are skipped unless credentials resolve and target URLs are set:

| Env var | Example | Marker |
|---|---|---|
| `NBU_TEST_S3_URL` | `s3://my-test-bucket/ci` | `-m s3` |
| `NBU_TEST_ABFS_URL` | `abfss://cont@acct.dfs.core.windows.net/ci` | `-m azure` |
| `NBU_TEST_GCS_URL` | `gs://my-test-bucket/ci` | `-m gcs` |

```sh
pytest tests/integration -m s3        # requires AWS credentials + NBU_TEST_S3_URL
pytest tests/integration -m fuse      # additionally requires FUSE binaries
```